Back in about 1995, I remember watching a movie with some older kids. The movie was on late and before the movie ended, I had to leave and go to bed.
I never saw the end of the movie and have no idea what it was called.
From memory, the movie involved being stuck on a futuristic island and needing to leave. The main guy had met an inventor while there who was trying to build a boat or plane or something like that to help them get away.
The movie was on TV I think so I presume it probably had a release date of 1994 or earlier.