The entire movie of <i><a href="https://en.wikipedia.org/wiki/A_Star_is_Born_(1937_film)" class="extiw" title="w:A Star is Born (1937 film)">A Star is Born</a></i> (1937), which is the first Best Picture Nominee to be in color.
Selzinck International Pictures
<a rel="nofollow" class="external free" href="https://archive.org/details/AStarIsBorn">https://archive.org/details/AStarIsBorn</a>