Sounds to me like Michel Legrand. A couple of passages sounded similar to castle keep and thomas crown.
Not Legrand. One of the things I love about doing this is you can see how much of film music colors comes from classical works. This one is a classical work and the composer is not American nor French. It was a choice between this piece and one other that was very film music-like.
Don't even know who that is. It's actually a composer with a singular popular piece of music who is also has in name in an EXTREMELY popular piece of music. But he wrote a lot of great other music too.
Specifically the final movement of Niagra Falls Suite. Grofe wrote quite a bunch of suites being Grand Canyon....sadly a lot of them either old LP only or never recorded. But there's six available over two great Naxos CDs conducted by none other than William Stromberg.