Where can I watch The Signal for free?

Watch The Signal free in HD on Castle. Download the Castle App to stream the full movie with English audio — no subscription, no signup needed.

What languages is The Signal available in?

On Castle, The Signal is available in English, all in HD.

Who stars in The Signal?

Brenton Thwaites stars in The Signal, alongside Olivia Cooke and Beau Knapp in lead roles.

When was The Signal released?

The Signal was released on 2014-07-10, and is now streaming free on Castle.

Is the Castle App safe to download?

Yes. The Castle APK is a verified safe file. It requires only basic Android permissions and does not need root access. Compatible with Android 6.0 and above.

The Signal

2014•97 minIMDB 6.0

Directed by William Eubank and brought to life by Brenton Thwaites, The Signal (2014) unfolds in United States as Brenton Thwaites faces Three college students on a road trip across the Southwest experience a detour – the tracking of a computer genius who has already hacked into MIT and exposed security faults. W…. Co-starring Olivia Cooke, this Drama feature delves into drama, delivering Drama that keeps audiences engaged from opening scene to final frame.