Daniel Howat’s review published on Letterboxd :
Teen Titans Go! To The Movies mostly nails the self-referential and mocking humor, sending up superhero movies in the best way (including the all-time greatest Stan Lee cameo). It’s a fun, family superhero movie.
It’s mostly aimed at elementary kids, but adults should enjoy it.
Worth noting: I’ve never watched Teen Titans Go!
Also worth noting: “Upbeat Inspirational Song About Life” is pretty freakin catchy, even though it feels like a ripoff of “Everything is Awesome.”