25th
Hal Mohr (left) is the only person to be awarded an Oscar without being nominated first. He won the 1935 Academy Award for Cinematography. He was a hugely respected cinematographer and when he made A Midsummer Nights Dream many members of the Academy thought that Mohr should have been nominated and felt so strongly about it that when it came time to vote (which is done by postal votes) many wrote in Mohr’s name in the cinematography section. More did it than voted for any of the officially nominated cinematographers, and the Oscar went to Mohr. After the Awards were presented a rule change was made to prevent any write-in winners in future.