The Same River Twice (2003)

No sensuality, but large amounts of casual frontal nudity in a natural setting.

None.

Some minor profanity, including at least one "fuck you," but these are exceptions to the general level of dialog.

References to drug use, but no usage on screen except alcohol at a wedding party.

Some whitewater sequences leave you unsure of the safety of one character. The camera follows one character during a medical treatment. This scene is not graphic at all, but the subject matter may be unsettling for some.