Roland Griffiths and Ralph Metzner have appeared together in 2 films between 2010 and 2013. Every shared film with year, roles and gross, plus who else each works with most.
Roland Griffiths · Ralph Metzner
| Year | Film | Box office |
|---|---|---|
| 2010 | DMT: The Spirit Molecule | |
| 2013 | Neurons to Nirvana |
Roland Griffiths also often with: Charles Grob (2), Dennis J. McKenna (2), Jeremy Narby (2), Alex Grey (1), Andrew Weil (1)
Ralph Metzner also often with: Charles Grob (2), Dennis J. McKenna (2), Jeremy Narby (2), Rick Doblin (2), Stanislav Grof (2)