Vijay's daughter, Divya Saasha , has acted in this film for the final part where Dharmeshwar (Vijay) and grown up 'Nainika' (Divya) decides to live in Jammu and Kashmir.

Theri features several action sequences. Technicians from all over the world appeared to be working in this film. It is reported that a fight sequence is captured by 'Mission Impossible' team. And also film climax fight is shot on a maze trap.

This film is the 50th film that composer G.V. Prakash Kumar will score music for. He has previously worked with Vijay in Thalaivaa (2013).

When Annie is searching for Vijay Kumar in Google, among the search results are "Vijay (actor)". When clicked, this, of course, will show search results about the film's main actor, Vijay.

When Vijay Kumar tells his mother to wait in the car, he asks her to listen to "Google Google". This song is from the critically acclaimed and smash-hit film Thuppaki (2012), which also stars Vijay. Coincidentally, Vijay also sang that song which became one of the best and most played songs of 2012.

Actor Vijay has risked his life by jumping into the water from 100 ft for an important scene in this movie.

Theri collected 100 Crore within 6 days and entered 100 Crore block buster collections

The song-'Dub Theri Step' aka 'theri rap' was sung by arunraja kamaraj, who also gave the voice for 'kabali'-'neruppu da'. He appears in atlee's first movie raja rani too.

The last look of vijay(dharmeshwar) is to be continued on the sequel of Theri. The makers of Theri have started shooting.

The opening day collection of "Theri" is 32crs worldwide. Highest for a Vijay starrer and 2nd biggest opening for a Tamil film following "Lingaa".

It is Vijay's 3rd movie to pass the 100cr mark in box office. It had done it in 6 days.

Theri teaser breaks the record for having highest number of likes by any other Indian teaser within 2 days of 2lakh likes.

Theri songs are available on 20th March 2016

The sequel of the filim is in progress.Director reported that the sequel will happen only if 1'st part is hit

Vijay's first movie to gross $1 million in the United States. Theri has grosses $1.1million in US territory.

Most of the characters in the movie have the same name as the actors who portray them. For example, Joseph Vijay's characters' names are Joseph Kuruvilla and Vijay Kumar. Mottai Rajendran's character name is also Rajendran.

Theri(The spark)'s first day collection is 31cr which breaked all previous records

Theri budget 70crs

Bharathan,Vijay 60 director had done a comeo appearance in the filim