BOLD is in the film, non-bold was cut.
200 INT. MUSTAFAR-MAIN CONTROL CENTER-DAY
View screens EXPLODE around ANAKIN and OBI-WAN as they work their way into the Control Room. The fighting is intense. OBI-WAN is on the defensive as he jumps up on the table view screen in the center of the room.
ANAKIN: Don't make me destroy you, Master. You're no match for the dark side.
OBI-WAN: I've heard that before, Anakin . . . but I never thought I'd hear it from you.
ANAKIN forces OBI-WAN back into the Conference Room where the quarters are much closer. Sparks fly everywhere. ANAKIN jumps onto the conference table. OBI-WAN slides across the table, knocking ANAKIN over. OBI-WAN grabs ANAKIN’s lightsaber as he falls. OBI-WAN uses the Force to summon his dropped lightsaber. ANAKIN does the same.
202 INT. MUSTAFAR-MAIN CONTROL CENTER-DAY
The battle intensifies.
OBI-WAN: (continuing) The flaw of power is arrogance.
OBI-WAN stands looking at his former apprentice for a moment.
ANAKIN: You hesitate . . . the flaw of compassion.
OBI-WAN and ANAKIN lock sabers. OBI-WAN puts out his hand to use the Force to push ANAKIN away. ANAKIN puts out his hand to block OBI-WAN.
Both combatants are blasted backwards onto the control panels.
They regain their footing and the battle continues. ANAKIN kicks OBI-WAN away.
They battle around the room, and eventually the door to the exterior is knocked open. They continue battling out onto the balcony.
204 EXT. MUSTAFAR-MAIN CONTROL CENTER BALCONY-DAY
ANAKIN forces OBI-WAN down a narrow balcony outside the Control Room. He rips objects off the wall and throws them at OBI-WAN as he pushes him further and further along the walkway.
The balcony ends, and OBI-WAN is trapped. He looks over the balcony and into a river of lava.
ANAKIN cuts apiece of the balcony railing off, along with a control panel.
ALARMS SOUND, and a protective ray shield around the superstructure disappears. It tumbles into the molten abyss, disappearing in a puff of smoke. A small pipe connects the Control Center to the Main Collection Plant. OBI-WAN has no choice but to tightrope-walk out across the lava river while fighting ANAKIN.
205 EXT. MUSTAFAR-MAIN CONTROL CENTER BALCONY, PIPE ACROSS LAVA RIVER, MAIN COLLECTION PLANT-DAY
ANAKIN, following OBI-WAN, jumps down onto the flexing pipe, lands, and resumes fighting.
206 INT. MUSTAFAR-PIPE ACROSS LAVA RIVER-DAY
OBI-WAN and ANAKIN work their way across the small pipe, fighting ferociously as they go. OBI-WAN slips, throws his lightsaber up in the air, grabs on to the pipe, swings around, grabs on to an upper pipe, retrieves his lightsaber, and lands back on the original pipe. They continue to fight across the pipe until they reach the Main Collection Plant.
209 EXT. MUSTAFAR-COLLECTION PANELS-DAY
OBI-WAN and ANAKIN battle on the top of the multispired collection panels, jumping from one to the other. At the end of the collection cluster, a huge spray of lava covers the attachments that hold up the collectors. The frame begins to melt. It's raining lava. Both ANAKIN and OBI-WAN run for cover under the collection cluster. They continue to fight in the lava rain, darting from cover to attack, then quickly retreating to cover.
Support for the entire structure begins to fall away, and the collection cluster falls into the lava river. The Jedi continue their fight, climbing to the highest point on the tower as the rest begins to melt away as it rides the swift current down the river.
It bends toward the lava as they get out toward the end. The fighting gets fierce. OBI-WAN gets to the end and is trapped. The tower slowly starts to sink under the lava.
212 EXT. MUSTAFAR-COLLECTION PANELS-DAY
OBI-WAN realizes he is getting very close to the edge of the lava falls. He grabs a rope and leaps from the collection arm. ANAKIN follows.
ANAKIN and OBI-WAN continue their sword fight hanging from cables as they swing past each other.
214 EXT. MUSTAFAR-COLLECTION PANELS-DAY
From their cables, ANAKIN and OBI-WAN both spot something that causes them to stop fighting. The lava river ahead drops off in a tremendous lava fall.
SNAPPING AND METAL GROANS are heard as the main part of the collector starts to break away and move toward the lava fall. OBI-WAN looks around and sees a small floating platform making its way toward the tower.
OBI-WAN does a double hack-flip and lands squarely on the floating platform. He immediately leans to one side and moves away from the tower.
ANAKIN realizes he is doomed as the entire tower heads for the falls. In the distance he sees some CONSTRUCTION DROIDS. He swings back to the tower, climbs up and makes a running leap and miraculously lands on A WORKER DROID. The DROID is confused and chatters to his CO-WORKER. The giant collector goes over the lava flow and disappears in the mist of sparks below.
OBI-WAN heads for the bank of the lava river, but Anakin's DROID is faster. He catches up with his old Master.
OBI-WAN and ANAKIN continue the swordfight. They battle away, balancing on the tiny platform and puzzled DROID. ANAKIN, standing on the Droid, approaches OBI-WAN on the work platform.
OBI-WAN: I have failed you, Anakin. I was never able to teach you to think.
ANAKIN and OBI-WAN confront each other on the lava river.
ANAKIN: I should have known the Jedi were plotting to take over . . .
OBI-WAN: From the Sith!!! Anakin, Chancellor Palpatine is evil.
ANAKIN: From the Jedi point of view! From my point of view, the Jedi are evil.
OBI-WAN: Well, then you are lost!
ANAKIN: This is the end for you, My Master. I wish it were otherwise.
ANAKIN jumps and flips onto OBI- WAN's platform. The fighting continues again until OBI-WAN jumps toward the safety of the black sandy edge of the lava river. He yells at Anakin.
OBI-WAN: It's over, Anakin. I have the high ground.
ANAKIN: You underestimate my power!
OBI-WAN: Don't try it.
ANAKIN follows, and OBI-WAN cuts his young apprentice at the knees, then cuts off his left arm in the blink of an eye. ANAKIN tumbles down the embankment and rolls to a stop near the edge of the lava.
ANAKIN struggles to pull himself up the embankment with his mechanical hand. His thin leather glove has been burned off. He keeps sliding down in the black sand.
OBI-WAN: (continuing) . . . You were the Chosen One! It was said that you would, destroy the Sith, not join them. It was you who would bring balance to the Force, not leave it in Darkness.
OBI-WAN picks up Anakin's light saber and begins to walk away. He stops and looks back.
ANAKIN: I hate you!
OBI-WAN: You were my brother, Anakin. I loved you.
ANAKIN'S clothing blows into the lava river and ignites. Suddenly ANAKIN bursts into flames and starts SCREAMING.
215 INT. MUSTAFAR-VOLCANO EDGE-DAY
OBI-WAN looks in horror as ANAKIN becomes engulfed in flames. OBI-WAN can't watch him as he struggles to climb the embankment, covered in flames.
He runs back to Padme's ship as ANAKIN drops, smoldering, near the top of the lava pit.