There are a few explanations for why the CGI used on She-Hulk in She-Hulk: Attorney at Law is not as effective as that used on Hulk. The upcoming MCU Disney+ show features She-Hulk for the first time ever in live-action through a combination of Tatiana Maslany’s performance and CGI. This has brought up some issues regarding She-Hulk’s VFX compared to Hulk’s.
The trailer introduces Jennifer Walters/She-Hulk, lawyer and cousin to Bruce Banner/Hulk, to the MCU. Walters works for a “super-human law division,” and Tim Roth’s Emil Blonsky/Abomination, last seen cage-fighting with Wong in Shang-Chi, looks to be among her clients. While the trailer does not reveal how Walters gained her powers (in the comics, she receives a blood transfusion from Bruce Banner after getting shot by the mob), it does show Hulk training Walters to control her powerful alter-ego. One part of this training looks to involve a trap straight out of a Saw movie, complete with spinning blades. Plenty of shots have both Hulks together, in all their green glory, but the effects on She-Hulk herself have received criticism for looking unconvincing, especially when put next to her cousin.
Related: She-Hulk's Trailer Flipped Age Of Ultron's Worst Iron Man Joke
There are several reasons that She-Hulk’s CGI is harder to get right compared to Hulk’s. Firstly, the design for Jennifer Walter’s green alter-ego is far more recognizably human than Banner’s. This means that it could potentially fall into the uncanny valley for viewers. The uncanny valley is a concept where the more a humanoid object, such as a CGI character, looks human without being human, the more off-putting it looks. Secondly, She-Hulk is an all-new character; therefore, VFX artists are having to
Read more on screenrant.com