Each of the four strings of letters below is an intermingling of the letters of two movie titles. Within each string the letters of each movie are still in the correct order, but intermingled. For example, GOSILLVEDRFISTRENGEARK would lead to Goldfinger & Silver Streak.
1. SCTANLODBSYEMER
2. SBEPALACSHEHS
3. WITHENBIGRSDS
4. MABIMGMADMAIDDAY
From Amazing Mind Benders 2014 calendar, by Puzzability (Mike Shenk, Amy Goldstein, Robert Leighton), Page-A-Day, New York. Puzzle for July 28.