The Collector and Look Back in Anger ....
were made into very good movies. I think The Collector starred Terrence Stamp. I know Look Back in Anger was the first movie in which I saw Richard Burton. You would probably enjoy the movies now you have re-read the books.
Tender is the Night was made into a black & white movie in the 60s with Jason Robards Jr as Dick Diver. I forget who played Nicole. I would like to see it again, but I have never been able to find it on DVD.
Scott Fitzgerald didn't write that many novels other than Gatsby and Tender. Only 2-1/2 more: The Beautiful and the Damned and This Side of Paradise ( a kind of college memoir) plus his unfinished novel The Last Tycoon. He is better noted for his short stories which fill about 3 or 4 volumes. In fact, his short stories may be his best work. I am of the opinion that he would have been the fifth American to win the Nobel prize if he hadn't died so young (44 I believe).
The movie about his affair with the British Hollywood writer (Sheila Graham) is worth seeing, but although I like Gregory Peck, he just was not Scott Fitzgerald. Deborah Kerr though was well cast as Sheilah Graham. the movie was taken from Graham's book Beloved Infidel.