Grandma's Boy is a gorgeous movie that helps to place Harold Lloyd among the great silent geniuses of our time. Ingeniously entwining entertaining gags with warm character development, Grandma's Boy is truly one of Lloyd's greatest achievments as an actor and innovator.
Unlike Lloyd's previous short subjects and first full-length feature, (1921's A Sailor-Made Man) Grandma's Boy contains a truly moving story and a main character to which we all can relate--a concept that has endeared Harold Lloyd into the hearts of all his fans.
If you enjoy the characterization of Harold in Grandma's Boy, I also strongly recommend my personal favorite Lloyd film Girl Shy, released in 1924. 1925's The Freshman and 1927's The Kid Brother are also wonderful character comedies. However, if you are strictly a lover of hilarious gags, 1923's Saftey Last! is absolutley fantastic.
If there is one downfall to Grandma's Boy, it is related not to the film itself, but to the organ score that accompanies it. Music does so much to create the mood in any movie, silent or talkie, and the ghastly sounds of an organ just don't do the trick.
However, do not let anything discourage you--See the film that Charlie Chaplin christened: " One of the best-constructed screenplays I have ever seen".