Octavia Spencer felt she was ''living in a bubble'' on the set of 'The Shape of Water'.

The 47-year-old actress has opened up about what it was like on the set of the science fiction turned romance film and how she kept in the character of a woman from the 1960s.

She said: ''I don't really venture into the real world, because you know it is hard to play a woman from this era and then have all of these things you're able to do now.

''So it is kind of like living in a bubble. So I spent a lot of time with Sally Hawkins.''

In the movie, Octavia plays a mute cleaner who stumbles on a amphibious man and admits playing a mute character has an ''even deeper meaning'' for her because her brother is mute.

She added: ''I know this very well. My brother is mute. So it has an even deeper meaning for me. It's more beautiful because I understand the beauty of not being able to say words but still convey feelings.''

Octavia enjoyed working alongside Sally and admits she was pleasantly surprised how she managed to channel a ''different person'' despite being painfully shy.

She told king5.com: ''Well, here's something people don't know about Sally. She is painfully shy. I have never met anyone as shy as she is. When she becomes Elisa, it is a different person so to see her at work and to know how she really doesn't like the spotlight at all. It's just so beautiful and humbling, and I love her. Just love her.''