I think it was last year that I saw a trailer on apple trailers and it really interested me. It was about a man (and I'm pretty sure he had a son) who claimed he invented a machine but did not get the fame or credit for it. Now I'm not sure what machine it was, all I remember is he was an average person who claimed he invented some sort of small machine.

Sorry- I know it's a really bad description but that is all I can remember about this movie.

I believe the movie is Flash of Genius starring Greg Kinnear.