Corrected entry: At the end of the movie when the rebel pilots are attacking the Death Star, red leader was able to get a shot off at the thermal exhaust port. He reports the proton torpedo didn't go in. Rather, it impacted on the surface, evidenced by a massive explosion. but when Luke gets off his shot, there is no visible damage to the exhaust port.
Greg Dwyer
29th Oct 2017
Correction: There is an extreme closeup when Luke's torpedo enters the port. If Red Leader missed by a significant margin, we wouldn't see the damage.
Greg Dwyer