Can I use "jemals" in these sentences?
How do you usually express "ever", in German, in this specific sense: "The best day ever!" "The best movie ever!" etc. Thanks!

Question

Answer

'ever' is just a meaningless filler. The best implies already ever. In deutsch kann man sagen:

Der beste Film aller Zeiten.

Answer

you can say:

"der beste Film den ich jemals gesehen habe"

i don't think it's quite normal to use it in relation to the best day ever though.

you can also just say "der/die/das allerbeste... "