This was a 2k digital production with some sections (the David Hasselhoff footage) shot on 35mm and completed as a 2k DI. Even though they were still doing filmouts of stuff until at least 2012, Paramount’s HD master is derived from the DI.
Surprised they went to a filmout on this one since they could have easily just upscaled the 2k DI. Maybe they rescanned the raw 35mm live action footage and while they recomped the filmout sections that had different color it may have made sense to have most of it come from that as opposed to the DI with drastically different grading.