YOU SAID:
i like to eat buttery popcorn while watching movies
INTO JAPANESE
私は映画を見ながらバターの入ったポップコーンを食べるのが好きです
BACK INTO ENGLISH
I like to eat popcorn with butter while watching movies
INTO JAPANESE
映画を見ながらポップコーンとバターを食べるのが好き
BACK INTO ENGLISH
I like to eat popcorn and butter while watching movies
INTO JAPANESE
映画を見ながらポップコーンやバターを食べるのが好き
BACK INTO ENGLISH
I like to eat popcorn and butter while watching movies
That didn't even make that much sense in English.