Mature a much better actor than he was given credit for
in addition to this movie, look at the wonderful scene with his son in Richard Fleischer's "Violent Saturday", where he exhibits real sensitivity and subtlety...or the roistering mountain man in Anthony Mann's "The Last Frontier", a great manic performance, look at the way he exploits his own unique features...helped by such great directors as Hathaway, Fleischer, and Mann, he was capable of very good underrated work.
It would be a great service to older actors/actresses, and to those who have passed away, if some of their lesser known and unavailable work were shown to mitigate the unfair reputations they have been saddled with...for instance Violent Saturday is not available in any home format. and hey he wasn't that bad in Samson and Delilah.