Look at the movie.
If you play D&D you should know that dwarfs are around 3 feet tall, and elves are always very tall.
this height slip-up is most obvious at the end when they are looking over a wall after the dragons fight.
the dwarf is clearly the same height as the elf, and the elf is barely taller than Ridly.
if the heights were accurate, the dwarf would barely see over the wall, if at all.