I'm planning to buy the blu-ray box soon and I just wondered about some things when looking at the BD vs DVD comparison. (Note that I'm not familiar with any changes made between different releases of this film)

Here the reflection in the water under the plane's wing looks like it's been smudged out in the BD version, and the water has a teal tint, reminding a lot of the color timing used in many modern movies like Transformers.

In the same shot, here the water reflection at the front of the plane is different and has some mist added.

Here the blue colors are shifted to teal, while the rest is shifted towards yellow in the BD version, again reminding me of Transformers.

Here it's a bit the opposite. The DVD's yellow tint of this shot has been shifted towards pink.

Here it's very visible how they've muted the contrast in the highlights. The clouds are very natural in the DVD but melt together with the rest of the sky in the BD.

Taking all of this into account, I really don't think this is what the film originally looked like. They didn't tint water to teal in 1981. They didn't push the contrast of highlights down. This screams modern-style color choices to me.