Examples

Apocalypse Now
Francis Ford Coppola (1979)
Persona
Ingmar Bergman (1966)
There Will Be Blood
Paul Thomas Anderson (2007)
Time of the Wolf
Michael Haneke (2003)
A Man Escaped
Robert Bresson (1956)

Staging in Minority Report (2002), Steven Spielberg

source: 

https://www.youtube.com/watch?v=o-4rk3T8PbQ

Touch of Evil (1958), Orson Welles

 

Long take, mobile camera

https://www.youtube.com/watch?v=mBAtcI_t-Z8&t=4s

The Grand Budapest Hotel (2014), Wes Anderson

Playtime (1967), Jacques Tati

Long take, fixed camera

https://www.youtube.com/watch?v=M6JE8wn8Tdc