i haven't seen the movie but i watched a clip on youtube of the scene with the tiger and it's completely possible
people like jubel play WoT and don't understand that things are not a set of game mechanics in real life
the first shell penetrated the tank but didn't explode because this was very late in the war and production quality was crap late in the war (it still damaged the turret mechanisms of the tank and broke stuff)
the second shell bounced off the EXTREMELY angled upper glacis of the tank which is also believable
seriously, a 1.28cm Jagdtiger shell bounced off the rear of a sherman turret in REAL LIFE
they didn't even get that lucky in the movie
movies would be nowhere near as entertaining if they were about the norm.
they're interesting because they're about the people who get lucky and not the people who don't
i can't speak about the Pak40 ricochets because i haven't actually seen the movie but they're probably just as feasible
also the tracers were absolutely that bright in real life