Harvard film student Andrew Wesman was on a Utah road trip over spring break with his best friend, Ian Carr, when they stopped to take pictures in Zion National Park. An e-mail popped up on Wesman’s iPhone: The renowned Cannes Film Festival in France had accepted Wesman’s senior thesis, a low-budget, 21-minute narrative film called “Shelley.’’ His tuxedoed presence was requested on the red carpet on May 21.






